75F Haystack API
75F's Project Haystack-compliant external REST API. Reads Haystack entity records by filter or by id (read), reads time-series history for many points at once (hisReadMany), and writes to writable points and historized points (pointWrite, hisWriteMany). Requests carry an OAuth 2.0 bearer token plus a product-scoped Ocp-Apim-Subscription-Key; responses are Haystack grids in JSON or ZINC.